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Mineral-based soil conditioner for improving coastal saline soil and preparation method thereof

A technology of soil conditioner and sea salt, which is applied in the direction of soil conditioning materials, chemical instruments and methods, applications, etc., can solve the problems that the effect needs to be further improved, reduce soil salinity, and is difficult to configure, so as to achieve low production costs and improve rice production. Yield, good adsorption capacity effect

Active Publication Date: 2022-01-04
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This invention uses minerals + microbial agents + enzymes to add activators such as organic acids to the minerals, which can effectively absorb the salt in the soil and neutralize it at the same time OH-, can effectively reduce soil salinity, but its composition is complex and difficult to configure, and after actual use, it is found that its effect still needs to be further improved

Method used

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  • Mineral-based soil conditioner for improving coastal saline soil and preparation method thereof
  • Mineral-based soil conditioner for improving coastal saline soil and preparation method thereof
  • Mineral-based soil conditioner for improving coastal saline soil and preparation method thereof

Examples

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Embodiment 1

[0033] This embodiment provides a mineral-based soil conditioner for seaside saline soil improvement, including 400 parts by mass of modified zeolite, 150 parts of urea, 150 parts of superphosphate, 100 parts of water-retaining agent, 80 parts of parts of ammonium sulfate, 50 parts of ferrous sulfate and 100 parts of bentonite.

[0034] Modified zeolites are modified by the following steps:

[0035] Step 1: Take zeolite, modifier and solvent, dissolve the modifier into the solvent, add zeolite, and heat to reflux for 30 minutes;

[0036] Step 2: After naturally cooling to room temperature, filter to separate the solid and liquid phases;

[0037] Step 3: Calcining the solid phase obtained in Step 2 at 550° C. for 40 min to obtain a modified zeolite.

[0038] Wherein, the component of zeolite and modifying agent comprises the zeolite that mass parts are respectively 600 parts, the aluminum sulfate of 60 parts, the magnesium sulfate of 50 parts and the phosphoric acid of 100 pa...

Embodiment 2

[0042] This embodiment provides a mineral-based soil conditioner for improvement of coastal saline soil, including 600 parts by mass of modified zeolite, 100 parts of urea, 100 parts of superphosphate, 60 parts of water-retaining agent, 30 parts 15 parts of ammonium sulfate, 15 parts of ferrous sulfate and 50 parts of bentonite.

[0043] Modified zeolites are modified by the following steps:

[0044] Step 1: Take zeolite, modifier and solvent, dissolve the modifier into the solvent, add zeolite, and heat to reflux for 60 minutes;

[0045] Step 2: After naturally cooling to room temperature, filter to separate the solid and liquid phases;

[0046] Step 3: Calcining the solid phase obtained in Step 2 at 450° C. for 20 minutes to obtain a modified zeolite.

[0047] Wherein, the component of zeolite and modifying agent comprises the zeolite that mass parts are respectively 400 parts, the aluminum sulfate of 80 parts, the magnesium sulfate of 150 parts and the phosphoric acid of ...

Embodiment 3

[0049] This embodiment provides a mineral-based soil conditioner for seaside saline soil improvement, including 500 parts by mass of modified zeolite, 125 parts of urea, 125 parts of superphosphate, 80 parts of water retaining agent, 55 parts 30 parts of ammonium sulfate, 30 parts of ferrous sulfate and 75 parts of bentonite.

[0050] Modified zeolites are modified by the following steps:

[0051] Step 1: Take zeolite, modifier and solvent, dissolve the modifier into the solvent, add zeolite, and heat to reflux for 45 minutes;

[0052] Step 2: After naturally cooling to room temperature, filter to separate the solid and liquid phases;

[0053] Step 3: Calcining the solid phase obtained in Step 2 at 500° C. for 30 min to obtain a modified zeolite.

[0054] Wherein, the component of zeolite and modifying agent comprises the zeolite that mass parts are respectively 500 parts, the aluminum sulfate of 70 parts, the magnesium sulfate of 100 parts and the phosphoric acid of 200 par...

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Abstract

The invention relates to the technical field of crop planting, in particular to a mineral-based soil conditioner for improving coastal saline soil and a preparation method thereof. In order to solve the problem that the yield of planted rice still needs to be increased after a soil conditioner in the prior art is applied to saline-alkali soil such as shoal soil, the invention provides the mineral-based soil conditioner for improving coastal saline soil and the preparation method thereof, the mineral-based soil conditioner comprises urea and a water-retaining agent, the mineral-based soil conditioner further comprises calcium superphosphate, bentonite, ammonium sulfate, ferrous sulfate and modified zeolite subjected to thermal modification. The zeolite is thermally modified and then mixed with other components to prepare the soil conditioner, and when the soil conditioner is applied to shoal soil, the yield of planted rice can be greatly increased.

Description

technical field [0001] The invention relates to the technical field of crop planting, in particular to a mineral-based soil conditioner for coastal saline soil improvement and a preparation method thereof. Background technique [0002] The area of ​​saline soil in the world is about 1 billion hectares; the area of ​​saline soil in my country is about 34.6 million hectares, of which there are about 2.4 million hectares of coastal saline soil. Due to the high salinity of the soil, the lack of fresh water resources and low nutrients, the growth of crops has been seriously affected, and the development of agriculture in coastal areas has been severely limited. Applying soil conditioner to improve saline soil is an economical and convenient method. It can improve soil physical and chemical properties, enhance soil and water retention capacity, reduce salinity stress in saline-alkali soil, and improve crop yield and quality. At present, the commonly used conditioners mainly inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05G3/40C09K17/40
CPCC05G3/80C05G3/40C05B1/02C09K17/40C05C3/00C05C9/00C05D9/00C05D9/02
Inventor 傅庆林郭彬裘高扬李华刘琛刘俊丽陈晓冬林义成朱芸李鹏
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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